JPH06278213A - Production of adhesive molded sheet - Google Patents

Abstract

PURPOSE:To prevent the pressurization of raised fibers and the generation of the falling of fibers when a raised, skin material is bonded by supplying a heating fluid to a heating mold to integrally bonding the raised skin material to a molded pad material by a hotmelt resin film developing adhesive capacity under heating. CONSTITUTION:A molded pad material 2 is set to the receiving surface 3 of a receiving mold 1 and a raised skin material 5 having a hotmelt resin film 5a laminated to the rear surface thereof is applied to the surface of the molded pad material 2 to be clamped at the skirt end thereof by a clamp mechanism 13. The air in the receiving mold 1 is discharged from an exhaust hole 11 and, in this state, a heating fluid is supplied to a heating, mold 4 from the heating fluid supply port 8 thereof. The raised skin material is heated by the heating fluid to heat and melt the hot-melt resin film 5a laminated to the rear surface of the raised skin material 5 to make the material 5 air-impermeable to apply adhesive capacity to the film 5a. The raised skin material 5 continuously brought into close contact with the molded pad material under suction is integrally bonded to the molded pad material 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an adhesively molded sheet for producing a vehicle seat, a vehicle interior material, and the like in which a raised pad material is attached to a mold pad material.

[0002]

2. Description of the Related Art Conventionally, as a method for attaching a raised skin material to a mold pad material, as shown in Japanese Patent Laid-Open No. 61-162317, a raised skin material is supported by needle-like projections provided on a vacuum forming die. It is also known to prevent the hair fall over by adhesive molding, but it is difficult to manufacture a vacuum forming die having a needle-shaped protrusion, and the manufacturing cost is high, and the needle-shaped protrusion is easily broken or worn. This requires frequent repairs and replacements, which raises the problem of increased running cost, and also causes the problem of hair collapse on the napped skin due to bending of the needle-like projections. In addition, JP-A-61-1692
As disclosed in Japanese Patent No. 23,23, it is known that a concave portion is formed so that the surface pressure of the raised epidermis portion is reduced to prevent hair collapse. However, if the surface pressure of the raised epidermis portion is reduced, it becomes a mold pad material. There is a problem in that the adhesion failure occurs, and dust easily accumulates in the concave portion of the mold to stain the product, and further, it is not possible to completely prevent hair fall.

[0003]

The problem to be solved by the present invention is to solve the above-mentioned problems and to make the napped skin material and the mold pad material adhere to the mold surface. An object of the present invention is to provide a method for producing an adhesive molded sheet in which hair raising of a napped skin material is prevented from falling down by being performed accurately.

[0004]

The method for producing an adhesively molded sheet according to the present invention, which has solved the above-mentioned problems, has a mold-receiving surface in which pores for suctioning are provided, and the mold is breathable. A mold pad material having the above is set, and a hot-melt resin film is laminated on the back surface of the mold pad material to set a non-air permeable raised skin material, and suction pressure is applied to the raised skin material through the pores to raise the raised hair. While sucking the skin material onto the surface of the mold pad material, the heating mold in which the heating fluid discharge holes are provided on the mold surface is pressed against the peripheral edge of the raised skin material only at the peripheral mating surface, and the mold surface is the raised skin. The heating die is matched with the die so that it does not come into contact with the material, and heating fluid is supplied from the discharge hole to the gap between the die surface of the heating die and the napped skin material to exert the adhesive ability by heating with the heating fluid. Brushed by hot melt resin film It is characterized in that integrally bonded to the surface material to the mold pad material.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the illustrated embodiments. Reference numeral 1 denotes a hollow receiving mold having a receiving surface 3 having the same shape as the back surface side of the mold pad material 2, and 4 is a hollow heating mold facing and separated from above the receiving mold 1, and the heating mold 4 At the time of mold matching, only the mold matching surface 4b of the peripheral edge is pressed against the peripheral edge of the receiving mold via the napped skin material 5 described later so that the mold surface 4a does not come into contact with the napped skin material 5 from the surface of the mold pad material 2. It is configured so that a constant gap is formed. 5 is a raised skin material that is made non-breathable by laminating a hot melt resin film 5a on the back surface of a breathable raised fabric such as a pile fabric, 8 is a heating fluid supply port provided in the heating mold 4, A plurality of heating fluid discharge holes 9 are provided through the die surface of the heating die 4 from the heating fluid supply hole 8 to the heating die 4
The heating fluid such as steam or hot air supplied to the hollow portion of the heating pad 5 is applied through the discharge holes 9 to the mold surface 4a of the heating mold 4 and the surface of the mold pad material 2 set in the receiving mold 5 The hot melt resin film 5a, which is supplied to the gap between and is laminated on the back surface of the napped skin material 5, is heated to impart adhesiveness thereto.

Reference numeral 11 denotes a depressurizing exhaust port provided in the receiving mold 1, and 12 denotes a plurality of suction pores provided through the receiving surface 3 of the receiving mold 1 for suction. The exhaust port is a vacuum such as a vacuum pump. A strong suction pressure is applied to the mold pad material 2 through the pores 12 by connecting to the source and depressurizing the hollow part of the mold 1, and the non-breathable raised skin material 5 is applied to the surface of the mold pad material 2 having air permeability. Is suction-adhered and preformed. Reference numeral 13 denotes a clamp mechanism provided on the side surface of the receiving mold 1, and the clamp mechanism 13 clamps the hem end of the raised skin material 5.

In such a structure, first, the mold pad material 2 having air permeability is fitted and set on the die receiving surface 3 of the die 1, and the hot melt resin film 5a is laminated on the back surface so as not to be air permeable. Brushed skin material 5
Is attached to the surface of the mold pad material 2, and the bottom end of the raised pad material 5 is clamped by the clamp mechanism 13.
When the napped skin material 5 is set in this manner, air inside the receiving mold 1 is exhausted through the exhaust holes 11 to reduce the pressure inside the receiving mold 1, and a large number of transparent surfaces are provided on the receiving surface 3 of the receiving mold 1. The raised skin material 5 attached to the surface of the air-permeable mold pad material 2 through the pores 12 is non-air-permeable with the hot melt resin film 5a as described above, and thus is sucked into the mold pad material 2. It will be closely adhered and preformed.

When the napped skin material 5 is preformed in this manner, the heating die 4 having the heating fluid discharge holes 9 provided on the die surface while continuing the above-mentioned suction is used to form the peripheral die. When only the mating surface 4b is pressed against the peripheral edge of the raised skin material 5 and the die surface 4a is matched with the receiving mold 1 so as not to contact the raised skin material 5, the raised skin material 5 and the receiving mold 1 are set. Since a certain gap is formed between the surface of the mold pad material 2 and the napped skin material 5 and the napped skin material 5 is not pressed by the mold surface 4a, the heating fluid supply hole 8 of the heating die 4 is used in this state. When heating fluid such as steam or hot air is supplied, the heating fluid heats the napped skin material 5 through the discharge holes 9 of the heating die 4, and is laminated on the back surface of the napped skin material 5 to make the napped skin material 5 impermeable. Hot melt resin film 5a To impart adhesion ability to brushed skin material 5 which continues to be sucked in close contact with the mold pad material 2 are integrally bonded to the mold pad material 2. At this time, since the heating die 4 is in pressure contact with the receiving die 1 only at the peripheral mating surface 4b, the heating fluid does not leak to the outside of the die and the brushed skin material 5 is efficiently used as a mold pad with a small amount of heating fluid. Material 2
Will be glued to.

[0009]

As is apparent from the above description, the present invention sets a mold pad material having air permeability on a mold having pores for suction on the mold receiving surface, and hot-melts it on the surface thereof. Set a non-breathable napped skin material with a resin film laminated on the back side, and apply suction pressure to the napped skin material through the pores to heat the napped skin material while sucking it onto the surface of the mold pad material. A heating die having a fluid discharge hole on the mold surface is formed on the receiving mold so that only the peripheral mating surface presses the peripheral edge of the raised skin material and the mold surface does not contact the raised skin material. In addition, the heated skin is supplied from the discharge hole to the gap between the mold surface of the heating mold and the raised skin material, and the raised skin material is made into a mold pad material by a hot-melt resin film exhibiting adhesiveness by heating with the heating fluid. Integrated with As a result, there is no hair collapse of the raised surface material that occurs when the heating mold surface presses the raised surface material, and the heating mold and the receiving mold do not contact the mold surface, but on the peripheral matching surface. Since they are closely matched, the heating fluid does not leak to the outside of the mold, and the heat source for providing the adhesive ability to the hot melt resin film exhibits the maximum adhesive effect with the minimum usage amount. In addition to being able to shorten the time, the energy can be effectively used and the running cost can be reduced. Therefore, the present invention is extremely significant when it is brought to the industry as a method for producing an adhesive molded sheet that solves the conventional problems.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a process of the present invention in which a receiving mold and a heating mold are matched.

[Explanation of symbols]

 1 Receiving die 2 Mold pad material 3 Receiving surface 4 Heating die 4a Molding surface 4b Mold mating surface 5 Raised skin material 5a Hot melt resin film 9 Heating fluid discharge hole 12 Pore for suction

Claims (1)

[Claims] 1. A mold pad material having air permeability is set on a mold having suction holes on the mold receiving surface, and a hot melt resin film is laminated on the back surface of the mold pad material to prevent air permeability. The heated raised skin material is set, and a suction pressure is applied to the raised skin material through the pores to suck the raised skin material onto the surface of the mold pad material, and a heating fluid discharge hole is provided on the mold surface. The heating die is aligned with the receiving die so that only the peripheral mating surface is pressed against the peripheral edge of the napped skin material and the die surface does not come into contact with the napped skin material. Bonding characterized in that the napped skin material is adhered and integrated with the mold pad material by a hot melt resin film that is supplied to the gap between the mold surface of the heating die and the napped skin material and exhibits adhesiveness by heating with the heating fluid. Molded sheet manufacturing method.